One of the coolest things about implementing LESS inside of the framework is that we’re able to dynamically control colors and typography based on user selections. This allows us to design things well, while still giving users the ability to customize colors and type.
Users are able to actually add their own LESS in the admin options panel. They can use common variables for the background color or main fonts.
If your users want to write custom code for their theme, don’t add a textarea to your admin panel that allows them to write code, encourage them to write a child theme — it’s what they’re here for.